Water-elevating apparatus.



0. A. ROED. I WATER ELBVATING APPARATUS. APPLICATION IILED JUNE 23,1909.

1 ,OOO,345, Patented Aug. 8, 1911.

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ITNEiSES: INVENTOR.

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0. A. R0151) WATER ELEVATING APPARATUS. APPLICATION FILED JUNE 23, 1909.

1,000,345. Patented Aug. 8,1911

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WITNESSES IN VEN TOR.

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UNITED STATES PATENT OFFICE.

OLAF A. ROED, OFDENVER, COLORADO, ASSIGNOR OF ONE-HALF TO CHARLES P.

' DEATHERAGE, OF KANSAS CITY, MISSOURI.

WATER-ELEVATING APPARATUS.

Specification of Letters Patent.

Patented Aug, 8, 1911.

Application filed June 23, 1909. Serial No. 503,927.

To all whom it may concern:

Be it known that I, OLAF A. Roan, citizen of the. United States ofAmerica, residing at Denver, in the county of Denver and State ofColorado, have invented certain new and useful Improvements inWaterdevices which operate-by utilization of the power developed by abody of water falling through a comparatively small distance, to elevatefluid from a lower to a higher elevation.

My invention is based 1 upon the well known fact that the velocities offluid flowing through a tube of varying diameter, are inverselyproportionate to the area of cross section of said tube and that thepressure exerted upon said fluid will vary inversely with relation tothe squares of the diflerent velocities attained.

In the practice of my invention, I employ, in combination, a tubecomposed of axially alined sections connected by a constricted portionor throat, and a conduit one extremity of which extends in the fluid tobe raised and which terminates at its opposite end within the tube inproximity to the point of constriction. The ingress section of the tubewhich contracts to a small diameter, communicates with the higherportion of a stream whilethe egress section which expands gradually fromthe constricted extremity of the upper section, projects into the fluidat a point of lower elevation and the conduit which, as mentioned above,terminates within said tube may be provided near its opposite lowerextremity, with an air inlet for the purpose of increasing, by aeration,the buoyancy of the transported fluid so as to cause it to rise to ahigher elevation.- By reason of the peculiar construction of the tube ashereinabove described, the fluid flowing into the contracted ingressportion obeying a well known law of hydraulics, will increase invelocity as it approaches the'constricted throat and if the area at thethroat is sufliciently reduced will cause the formation of a vacuum atthe point where the fluid flows into the expanded egress section. As theconduit through Y which the fluid is drained, terminates at the pointwhere the vacuum is formed, a suction is created which draws the fluidfrom its source, through the conduit, into the expanded portion of thetube to be carried away with the water flowing thereunbalancing ofatmospheric pressure at the throat-section mainly due to the pilot tubeeffect produced by the rapid flow of fluid past the orifice of theconduit. The total through, thissuction being caused by the suction thusobtained is sufliciently eflicient to elevate water from a low source toa point of higher elevation and, although the invention may be employedfor various purposes, it is particularly adapted for draining off thesewage from the subterraneous pipe lines in municipalities where thestream to which said sewage is' to be conveyed, is above 'said lines. jI

An embodiment of my invention is shown in the accompanying drawings inthe various views of which like designated and in which Figure 1,represents a sectional View of the elements comprised in my invention,in operative'position, and Fig. 2, a similar view showing, a modifiedarrangement of the parts.

Referring to the drawings, let the reference character A designate asource of fluid to be drained, B the point of higher elevation of astream, and C a point of lower elevation of the same.

The tube through the instrumentality of which the vacuum required in theoperation of the device, is produced by the flow of water from theportion B to the-point C, is

parts are similarly designated by the numeral 5, and comprises thetrumpet shaped ingress section 6 which terminates in the constrictedthroat 7, and the therewith axially alined egress portion 8, whose crosssectional area increases gradually from the point of constriction to thelower extremity of the tube which is dis posed below the level of thewater in the portion C of the stream.

To render the device most effective, the

diameter of the tube at its constriction should be very small and theegress portion of the tube should be expanded from the said constrictiontoward its extremity at an approximate ratio of not less than 1 to 6 andmore if possible.v

The receiving leg of the preferably siphon like conduit 9 extends intothe source A while its opposite leg has a slightly contracted nozzle 10-which projects, axially, into the egress portion of the tube andterminates at the point of constriction. An air inlet 12 at the lowerportion of the re ceiving leg of the tube provides means for theaeration of the ascending column of water should the vacuum in the tubebe insufficient to raise it to the desired height.

The'arrangement shown in' Fig. 2, operating on the same principle asthatihereinbefore described, is especially adapted to lift fiuid to apoint above the highest water level I of the stream from which thepower'is derived. The tube 13 connects, as before, the

points of high and low elevation B and C of a stream, and the suctionpipe 14 projects with its lower extremity into the source A and isprovided with an air-inlet 15. The upper end of the pipe 14 terminatesin a closed reservoir '16 from whose lowerportion a conduit 17 leads tothe receptacle 18 into which the fluid drawn from the source, isdischarged. A conduit 19 connected with the air space of the reservoir16, projects with its opposite end, into the tube 13 and terminates atthe point of constriction 13.

The vacuum produced at this point will cause the air tobe exhausted fromthe reservoir with the result that the fluid contained in the source Awill rise in the suction pipe,

'impelled by the atmospheric pressure and the buoyant efi'ect of the airintroduced into the conduit through the inlet 15.

It will be understood that if 'so desired, the conduit instead ofextending into a source of fluid supply, may terminate in a reservoirwhereby the apparatus may be employed in the capacity of a vacuum pump'and that the tube although shown in the drawings in a vertical position,may 'be placed horizontally or at an desired angle should circumstancesforbid lts being placed perpendicularly.

Having thus described my invention, what I claim and desire to secure byLetters Pat- .ent is 1. An apparatus for elevating water comopposite legextends into a source of water supply of lower elevation than thelower/one of the first named bodies of water.

2. An apparatus for. elevating water comprising in combination, a tubecomposed of two sections tapering continuously in opposite directionsandconnected at their nor-- row ends by a constricted throat,saidsections having their opposite ends, respectively, below the levelsof two bodies of water of diiler'ent'elevations, and a reversed siphonone leg of which terminates within the. constricted throat of said tubewhile its opposite leg has an air inlet 'in its lower portion andextends into a source of water supply of lower elevation than the lower.one of the first mentioned bodies of water.

3. An apparatus for elevating water comprising in combinatioma tubecomposed of two sections tapering continuously in op'posite directionsand connected at their narrow ends by a constricted throat, saidsections having their opposite ends, respectively, be-

low the levels of two bodies of water of difi'erent elevations, areservoir having a water-outlet, a suction pipe connected with saidreservoir and extending-into a source of water supply of lowerelevation-than the lower one of the first mentioned bodies of water, anda conduit, one end of which connects with the air-space of saidreservoir, while its opposite end terminates within the constrictedthroat of said tube,

4. An apparatus for elevating water com prising in combination, a tubecomposed of two sections tapering continuously. in opposite directionsand connected at their narrow ends by a constricted throat, said sec--tions having their opposite ends, respectively, below thelevels oftwobodies of water ofdiiferent elevations, a reservoir havinga wateroutlet, a suction pipe connected with said reservoir and extending intoa source of water supply. of lower elevation than the lower 'one of thefirst mentioned bodies of water, and a conduit, one end of whichconnects with the air space of said reservoir while its oppositecndterminates within the constricted throat of said tube,- said suctionpipe having an air inlet in its 1 lower portion.

In testimony whereof I have aflixed my signature in presence of twowitnesses;

OLAF A. ROED.

Witnesses G. J. ROLLANDET,

M. L. GEARY.

